Adding splat[] short hand to collect,eval,map,omit,path,pick

pkg/yqlib/operator_pick_test.go

@@ -14,6 +14,16 @@ var pickOperatorScenarios = []expressionScenario{
 			"D0, P[], (!!map)::myMap: {hamster: squeak, cat: meow}\n",
 		},
 	},
+	{
+		description: "Pick splat",
+		skipDoc:     true,
+		document:    "{cat: meow, dog: bark, thing: hamster, hamster: squeak}\n",
+		expression:  `pick(["hamster", "cat"])[]`,
+		expected: []string{
+			"D0, P[hamster], (!!str)::squeak\n",
+			"D0, P[cat], (!!str)::meow\n",
+		},
+	},
 	{
 		description: "Pick keys from map",
 		skipDoc:     true,